Glass Test Tubes with Rubber Stoppers 150mm x 20mm Pack of 10 and 1pcs Brush

I like the quality of the glass test tubes, and the fact that they come with a cleaning brush. But unfortunately the rubber stoppers leak from the middle and stain as seen in the photos. Can't use any of them and had to buy a pack of corks separately before I could use the tubes at all. But if you're not planning on shaking up the contents or tipping the tube upside down, then they should suffice.

Very good quality test tubes! We purchased these to catch queen ants after nuptial flight. The test tubes are generous size, good quality, and were packed very nicely arrived unbroken. We will not be using the stopper, as we will put cotton ball in the top for the reason we bought these James. Love the value pack size as well.

Not too thick, not too thin. Heat them and blow shapes or use them as is. They will fit your needs and the stopper comes in very handy when blowing bubbles. Simply cut about 1/4 inch off the big end and push a flexible hose through and you are set. The stoppers have a hole threw them that is perfect for a blow pipe and you can use it to protect your fingers from heat. Get some!

This product was for a craft project. It worked well.

Just what I wanted for propagating plants. Quality tubes. Only negative is that the included cleaning brush was crushed by the packaging and won’t return to its normal shape.